Broom-sewing machine.



PATEN'I'ED JAN. 13, 1903.

- W. 0. LIFE. BROOM SEWING MACHINE. APPLICATION FILED MAY 10, 1902.

14 SHEETS-SHEET 1.

N0 MODEL.

|I JVENTOR ATTORNEYS WITNESSES I PATENTED JAN. 13, 1903 w. 0. LIPE. v BROOM SEWING MACHINE. I APPLICATION FILED MAY 10, 1902. N0 MODEL. 14 SHEETS-SHEET 2.

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No. 718,263. PATENTEDYIAN. 13-, 1903. W. 0. LIFE.

BROOM SEWING MAGHINE. APPIIIOATION FILED MAY 10, 1902.

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WITNESSES: V INVENTOR ATTORNEYS mcn'au. o c. m: norms warns ca. vuomu-mq. WASH No. 718,263. PATENTBD JAN. 13, 1903.

I w; 0. LIPE. BROOM SEWING MACHINE.

APPLICATION FILED MAY 10, 1902.

N0 MODEL. 14 SHEEI'Q-SKEET 4.

INVENTOR 2 ATTORNEYS PATENTED JAN.'1'3,.1903'. .w. 0.: LIFE. BROOM SEWING MACHINE. APPLIOATIOF FILED IL! 10, 1902.

14 SHEETS-SHEET 6.

H0 IODEL.

ATTQRNEYE WITNESSES m: uonms PETERS c a., PHOTO-NWO WASHINGTON. b. c.

No: 718,263. PATENTED JAN.'13, 1903.

I W. 0. LIFE.

BROOM SEWINGMAOHINE.

APPLICATION FILED MAY 10, 1902.

N0 MODEL. 14 SHEETS-SHEET 6- l'lllimng II/Ill [Ill/ ATTORNEYS No. 718,263. PATENTED 37. 13, 1903.

-W. 0. LIFE. BROOM SEWING MACHINE.

N0 MODEL APPLICATION FILED my 10, p02. 14 SHEETS SHHT 7 I v v.

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No. 718,263. PATENTED JAN-13, 1903 W. a. LIPE. BROOM SEWING MACHINE.

APPLICATION FILED MAY 10, 1902.

N0 MODEL.

14 SHEETS-SHEET B.

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' No. 718,263. 1 PATENTED, JAN. 13, 1903.

- 0. LIFE.

BROOM SEWING MAGgINB.

APPIIGATION FILED MAY 10, 1902.

N0 MODEL. 14 SHEETS-SHEET 9.

'yA-TTORNEYS No. 718,263. PATENTED JAN. 13, 1903.

Q W 0. LIFE.

BROOM SEWING MACHINE. APPLICATION FILED MAY 10. 1902.

N0 MODEL. l4 SHEETS-SHEET 10.

WITNVESSE'S: INVENTOR:

No. 718,263. YATENTED JAN. 13, 1903;

4 W. G. LIFE.- BROOM SEWING MACHINE.

APPLICATION FILED MAY 10, 1902. K0 MODEL. 14 SHEETS-SHEET n.

WITNESSES: INVENTOR No. 718,263. I PATENTED JAN;13, 190s.

' W. 0. LIFE.

BROOM SEWING MACHINE.

APPLIUATION FILED MAYIO, 1902.

NO MODEL. 14 SHEETS-SHEET 12.

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-- No.71 8,263. PATENTED JAN. 13', 1903;

- 'WKO. LIPE.

BROOM SEWING MACHINE. APPLICATION FILED MAY 10, 1902.

N0 MODEL.

mam-W m W MW IIIIITH INVENTOR WITNESSES:

14 SHEETS-SHEET 13.

Qw 0 9 1 3 I N A J D. E M B T A P E H L O 3 6 w 8 l 7 m N BROOM SEWING MACHINE.

APPLIOATIOE mum HAY 10, 1902.

i4 sums-sum 14.

N0 MODEL.

INVENTOR WITNESSES ATTORNEYS 1d". a. c,

UNITED STATES WILLARD 0. LIFE, OF SYRACUSE, NEW YORK.

PATENT OFFICE.

BROOM-SEWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 718,263, dated January 13, 1903. Application filed M53110. 1902. Serial 110106.831. (N model.)

To a w/wm/ it may concern:

Be it known that I, WILLARD 0. LIFE, of Syracuse, in the county of Onondaga and State of New York, have'invented a certain new and useful Sewing-Machine, of which the following is a specification.

This invention relates to. a broom-sewing machine, and has for its object the production of a machine which is especially practical and simple in construction and highly effective and durable in use; and to this end it consists in the novel combinations and constructions hereinafter described, and pointed out in the claims.

In describing this invention reference is had to the accompanying drawings, in which like letters indicate corresponding parts in all the views.

Figure 1 is a perspective view ofa'preferred construction of my machine,.an unsewed broom being arranged therein. Fig. 2 is a side elevation, partlyin section, of the greater portion of the machine shown in Fig. 1. Fig. 3 is a top plan of my machine, the greater portion of the sewing mechanism being removed for illustrating the vise and its feeding mechanism. Fig. 4 is a front elevation of the detached vise and parts supported thereby. Fig.5 is a side elevation of the upper portion of the parts seen in Fig. 4, a broom being shown as engaged by the vise. Fig. 6 is a sectional view taken on line 6 6, Fig. 4. Figs. 7 and 8 are respectively a face v,iew, partlyin section, and an end elevation of the engaging part secured to one of the outer jaws of the vise and cooperating with means secured to the other outer jaw of the vise for moving one of these jaws toward and away from the other. Figs. 9 and 10 are views of a connection between the needle carried by the vise and the broom-support. Fig. 11 is a vertical sectional view taken on line 11 11, Fig. 5. Fig. 12 is a top plan of part of the detached supportforthebroom. Fig.13isaverticalsectional view of a guide for the handle of the.

broom. Fig. 14 is a detail view of a portion of one of the jaws of the vise and a movable part secured thereto'for determining the starting position of the vise. Fig. 15 is a side elevation of a portion of one of the jaws of the vise and contiguous parts for controlling the downward movement of the broom-support and for raising said support to its initial position. Figs. 16 and 17 are front elevations, partly in section, of the means shown in Fig. 15. Figs. 18, 19, and 20 are detail views of part of the rack controlling the movement of the broomsuipport, portions of the pawls cooperating with said rack, and the cams for forcing the pawls from. their operative position. Fig. 21 is a detached view of said cams, parts of the manually-operated member provided with the cams, and a portion of the means for elevating the broom-support. Fig. 22 is a sectional view taken on line 22 22, Fig. 21.

Figs. 23, 24, and are sectional views taken, respectively, on lines 23 23, Fig. 3, 24 24, Fig. 23, and 25 25, Fig. 24. Fig. 26 is a plan of a portion of the connections between the Visa and its feeding means. Fig. 27 is a sectional view taken on line 27 27, Fig. 26. Fig. 28 is a front elevation of the driving-pulley and contiguous parts of, the machine. Fig. .29 is a vertical sectional viewof the upper portion of the parts shown in Fig. 28. Fig. 30 is an elevation of the driving-pulley and part of the means for locking said pulley to its shaft. Fig. 31 is a sectional view of the detached friction-band for engaging the driving-pulley, taken on line 3131, Fig. 30. Figs. 32, 33, and 34 are respectively a top plan and side and front elevations, partly broken away, of the greater portion of the detached sewing mechanism of this machine, a part of the main frame being indicated in Fig. 34. Fig. 35 is a front elevation, partly broken away, of the parts illustrated in Fig. 34, the needles being shown in their intermediate positions. Figs. 36'and 37 are views of a needle and contiguous parts of the means for supporting and moving the needle. Figs. 38 and 39 are sectional views taken, respectively, on line 38 38, Fig.37, and 39 39, Fig. 38. Fig. 40 is an elevation of the removable part of the holder for the needle. Figs. 41 and 42 are elevations of one of the loopers and its actuating means. Fig. 43 is a sectional View taken on line 43 43, Fig. 42. Fig. 44 is a view of aportion of one of the looper-sections. Fig. 45 is an elevation of the band-lifter, and contiguous parts.

The illustrated preferred embodiment of this machine comprises a main frame A, a

vise B, and feeding and sewing mechanisms" As is obvious, the frame A is of any desirable form, size, and construction.

The vise B, Figs. 1 to 22, inclusive, usually consists of opposing jaws Z) I), a support 11 for the broom B, a manually-operated member b connected to said jaws and support, a movable part b for determining the starting position of the vise, and a guide 19 for the handle of the broom. Said jaw 19 is shown as secured at its intermediate portion to the frame A by a pivot a, upon which the jaw moves to and fro or in opposite directions from front to rear of the machine and toward and away from the needle-path. The jaw 19 is prevented from lateral movement by suitable means, Figs. 1 and 11, as separated bearing-su rfaces b Z7 arranged at opposite sides of the axis of said jaw and engaged with corresponding faces a upon the frame A, and as the jaw 17 swings on its axis in either direction beyond an intermediate vertical position it is subjected to the action of means here illustrated, Fig. 2, as comprising separated stops at, a connection 0, and a spring 0. The stops 6& generally consist of opposing shoulders on the frame A. The connection 0 is pivoted to the lower end of the jaw 19, is movable with the vise B in opposite directions relatively to the stops a and is provided with normally fixed shoulders 0 which are movable through narrow slots a opening through the opposing surfaces of the stops or shoulders a and are usually arranged in two openings of a series of openings in the connection c, that permit adjustment of said shoulders 0 toward and away from each other, and the spring 0 is arranged on the connection 0 between the shoulders 0 and as the vise swings to and fro beyond its intermediate position opposite portions of the spring 0', as'its ends, are alternately movable with the connection a and are alternately engaged with the stops a and prevented from movement with the connection 0, thus tensioning the spring, subjecting the vise to an increasing resistance when moving in either direction beyond its intermediate position, and storing energy in the spring, which tends to move the vise in opposite directions to said intermediate position. I preferably inter-pose washers 0 between the shoulders c and the ends of the spring 0'; but said washers may be dispensed with, if desired. Moreover, the shoulders 0 may be dispensed with and the intermediate portion of the spring 0 secured to the connection 0; but in such event only a part of the spring 0 will be utilized to resist the movement of the vise in either direction and to assist in returning the vise to its intermediate position.

As best seen in Figs. 4 and 11, the jaw Z) is movable laterally or relatively toward and away from the jaw Z) and is provided at its lower end with an extension 19 projecting laterally beyond its broom-engaging face and secured by a pivot b to said other jaw, at the outer side of the broom-engaging face thereof. The movement of the jaw b from the jaw Z) may be limited by a screw a, Fig. 1, normally fixed to the frame A. Said jaw b is thus supported by the jaw 12 and movable with the same toward and away from the needle-paths,which extend upwardly toward the tops of said jaws, and when the jaw 11 is moved on its pivot b laterally or relatively toward and away from the jaw 12 the extension 5 causes the upper edge of the jaw Z) to move downwardly with minimum liability of the projection thereof into the upwardly-extending pat-l1 of the corresponding needle.

The support b is here shown as consisting of opposite sections or jaws having their opposing broom-engaging surfaces interposed between inner surfaces of the jaws b b and preferably formed of suitable shape to give the desired form to the interposed part of the broom. This support If is movable step by step relatively to the jaws b b for arranging and holding the broom in the different positions which it assu mes during the securement of a plurality of bands thereto. The opposite sections or jaws of the support 11 are respectivelyguided in theirdownward movement by the jaws b b, and one section orjaw of the part b is supported by one of said jaws b b, as the jaw b, and is connected to said jawb by suitable means for preventing its lateral movement independently of the jaw 17, and the other section or jaw of the part b is supported by the section or jaw thereof supported by said one of the jaws b Z), as the jaw b, and is connected to the jaw b by means which move the same laterally with said jaw 19. In the illustrated exemplification of this invention the desired support from one of the sections or jaws of the part b to the other section or jaw thereof is afforded by arms I), which project from the inner faces of the sections or jaws of the support 11 are substantially concentric with the pivot b engage transverse faces b provided on said sections or jaws and formed concentric with said pivot, and are of such length that they are not moved out of engagementwith the faces b when the jaws b b are separated to permit the removal or insertion of the broom.

As seen in Fig. 11, the sections or jaws of the support b are provided with downwardlydiverging faces I), which engage corresponding faces h of the jaws Z) I). When the support 19 is in its initial or elevated position and the broom is clamped in the vise, the jaws Z) Z) press their engaging faces above the support I) firmly against said broom and also clamp the opposing surfaces of the sections or jaws of the support 19 against the interposed part of said broom; but after the first band is secured to the broom and the support 5 and 11.

b has been depressed to its position assumed during the securement of the second band a lower and thinner portion of the broom is interposed between the engaging faces of the jaws b b above the support 13 and the inclined faces I) Z1 permit said engaging faces of the jaws b b to tightly clamp the thinner interposed part of said broomand prevent the jaws b b from pressing the sections or jaws of the support 17 firmly against the broom, which is held in the desired form and against its expansion by the band previously secured thereto. It will therefore be understood that until the support I)? has made its first downward movement the faces b 19 cooperate to effect the firm clamping of the sections or jaws of the support b upon the broom and that after the first downward movement of the support b the faces Z7 Z9 prevent the support 19 from interfering'with an effective clamping of said article by the jaws b b and reduce the amount of labor necessary for securing the broom in the vise. As also seen in Fig. 11, each of the sections or jaws of the support 19 is composed of inner and outer divisions secured together by clampingscrews b Z which are readily adjusted for permitting the detachment and secure ment of the support 19 in position. The outer division of the section or jaw of the support b guided on the jaw 19, is generally provided with a depending rack b and to permit adjustment of said rack relatively to the support 12 the corresponding clamping screw Z9 is provided with an eccentric sleeve b, which encircles the part of this screw passed through said rack b and may be adjusted at will. The manually-operated member 12 is here shown as a shaft journaled in thejaw b and provided with cams b b Z9 and a handpiece Z2 Said cam 19 is formed with an internal-engaging face cooperating with an engaging part b which, as'here illustrated, is journaled in the jaw 19', is provided with an eccentrically-arranged peripheral face, Figs. 4, 8, and 11, for engaging with the'cam I), is adjustable relatively to said jaw b, and is held in its adjusted position by a clamping-screw 19 Figs.

As the member b is rocked in reverse directions the cam Z2 and the engaging part 13 move the jaw b laterally toward and away from the jaw 19 and lock the jaw 19' in its adjusted position. The surface b Fig. 4, of the cam b which effects the final clamping of the broom by the jaws b b, is preferably formed of such shape that the jaw b is moved by the surface 19 toward the jaw 19 with increased power as said broom is finally compressed.

As best seen in Figs. 15 to 20, the cams 5 I9 cooperate with the pawls d d of an escapement for the rack b for permitting said rack and the support I) to move downwardly by gravity step by step at the time or after the jaw b is moved from the jaw b and preventing the support 19 from moving downwardly when the jaw b is moved in the reverse direction. The pawls d d are forced to their operative position by springs d d and the pawl d is usually formed with a verticallyelongated opening 01 Fig. 15, for receiving its pivot. When the broom is not within the vise'B, the spring (:1 raises the pawl d as far as permitted by the elongated pivot-opening d and also slightly elevates the support 17?, so that a small space intervenes between the lowest tooth of the rack b andthe pawl d, as illustrated in Figs. 15 and 16; but when. the support b -is subjected to the weight ofthe broom said support and the pawl d are depressed slightly against the action of the spring 01 until the engaging faces of both pawls d d are in substantially the same horizontal plane and in contact with the lowest tooth of the rack b, as seen in Fig. 18.

As the manually-operated member 19 is moved toward the right to clamp the jaws b b upon a broom to which the first band is about to be sewed the cam I)" rocks the pawl 61 out of engagement with the rack b; but no downward movement of therack takes place, as the pawl (1 supports the rack in its elevated or initial position. During the continued movement of the member 13 toward the right the pawl 01 again engages the lowest tooth of the rack 19 and immediately afterward the cam 12 rocks the pawl (1 out of engagement with the rack b, whereupon the pawld prevents downward movement of the rack b, and the pawl d, owing to its elongated pivot-opening, is moved upwardly by the spring (1 and when said pawl is again engaged with the rack 13 upon the passage of the cam I2 its engaging face is slightly above the lowest tooth of the rack b, as indicated in Fig. 19. After the'first band is secured to the broom the member 6 is rocked to the left to release said broom, and during this movement of the member 17 the cams b b" successively actuate the pawls d d; but thesupport b cannot move downwardly until the pawl dis forced out of its operative position, as indicated in Fig. 20, and the downward movement of the support 19 is then limited by the pawl d. Upon the return of the member 19 to clamp the broom by the jaws b b no dropping of the support 19 takes place. The continued movements of the member 11 effect similar downward movements of the support b whenever the pawls (1 cl are actuated by the cams 19 19 moving to the left.

In considering the operation of the pawls d d it will be understood that when the member b moving to the right is about to cause the cam Z9 to force the pawl d from its operative position the broom is being clamped in position by the'jaw b, and its upper portion, which is partly compressed, tends to expand and produce sufficient friction between the vise and the broom'to prevent the broom and the support b from moving downwardly slightly at the time the cam Z9 moving to the right forces the pawl d from its operative po-. sition and that for this reason I elongate the pivot-opening of the pawl 02, so that said pawl may be moved by the spring d slightly above the lower or other previously-engaged tooth of the rack b. If it were not for the tendency of the broom to expand and prevent a slight downward movement of the support when the cam Z2 moving to the right forces the pawl cl from its operative position, the elongated pivot-opening of the pawl d would be unnecessary and said pawl would have its engaging face normally arranged above the corresponding face of the pawl d. It will also be understood that when the operating member b is moved to the left sufficiently to cause the cam Z)" to actuate the pawl 01 the tendency of the broom to expand does not retard the dropping of the support 5 owing to the securement of one or more bands thereto and to the separation of the jaws b b, effected by the cam b at the time-the pawl 01 is actuated by the cam 79".

It will be particularly noted that the operation of the member 12 to both move the jaw 1) toward and away from the jaw Z) and to actuate the pawls d cl is under the direct control of the operator and that he may move the member b either to release the broom from the jaws b b or to both release said broom and cause the same to move down wardly the desired step or distance.

In addition to actuating the jaw b and the pawls d (1 the manually-operated member I) also generally actuates suitable means which return the support 6 to its elevated or initial position, and is here illustrated, Figs. 11, 15, 16, 17, 21, and 22, as consisting of a movable part or sleeve c and a link a. The movable part or sleeve 6 is loosely mounted on a portion of the member b and is provided with an engaging face 8 in the path of a rigid arm b on said member and with an outwardly and upwardly projecting arm 8 connected by the link 6' to the support b As the support b moves downwardly the part or sleeve e moves loosely step by step on the member 0 with the support b and when said support 12 is in its depressed position the face 6 of the part or sleeve 6 is in close proximity to the position of the arm I) when the jaw Z) is in its position of greatest separation from the jaw b. Consequently if the movement of the memher I) to the left is continued after the jaw b has been separated from the jaw 19 to its extreme limit the cam 19 will move out of engagement with the part 11 and the arm N will engage the part or sleeve 6 and raise the support 5 to its elevated or initial position, where it will be supported by the pawls cl d. It will be understood, however, that the member b is rocked to the left beyond its position assumed when the jaws b b are separated to their maximum extent only when it is desired to raise the support b to'its elevated or initial position.

The movable part b for determining the starting position of the vise B is here shown as journaled in the jawb and as provided with an outer face Z9 for detachably engag ingalongitudinally-adjustable stop f, Fig. 2, normallyfixed to the frame A, and with a plurality of inner faces Z1 which are unequally separated from the outer face 11 and are movable into and out of contact with an engaging face Z1 of the jaw b. Said movable part b may be actuated by connections to the sup port b here illustrated as the link 6, the movable part or sleeve 6, and a link 2), Figs. 11, 14, 16, 17, and 21, pivoted at one end to an arm Z9 fixed to the movable part 12 and pivoted at its other end to an arm a, fixed to the movable part or sleeve 6. A suitable spring f normally forces the movable part b endwise for disengaging its inner faces I) from the face Z9 and thereby obviating any liability of the movement of the part b on its axis being retarded by the engagement of said faces 71 Z9 The spring f" is, however, readily compressed by the weight of the vise B when said vise is in its starting position, at which time the face 11 and one of the faces K1 are respectively in contact with the stop fand the face b It is therefore obvious that as the part b is moved on its axis it, when in operative position, separates the face I) of the jaw 19 a greater or less distance from the stop f, thus varying the points where the needles first enter the broom B when sewing the respective bands thereto, and thereby staggering the stitches, as will be understood by those skilled in the art. The starting position of the vise may also be varied by adjusting the stop f longitudinally. It will be understood, however, that the part b may be otherwise actuated and that the stop f may be incapable of longitudinal adjustment.

The guide I), Figs. 11 and 13, for the bandle of the broom is secured to the jaw b by any suitable means, as a bolt 12 Figs. 11 and 13, is substantially alined with the space between the broom-engaging faces of the jaws b b, and is provided with a side b movable laterally toward and away from the opposite portion of the guide. As best seen in Fig. 13, the lower end of the guide 12 may be provided with a yielding section 12 having an opening Z1 of less size than the passage in the overlying portion of said guide.

The feeding mechanism for the vise B, Figs. 23 to 31, inclusive, preferably comprises a shaft 9, driven and driving members 72/71 a stop j, and means for holding the vise in its adjusted position. The shaft 9 usually supports a driving-wheel g, loosely mounted on said shaft and connected thereto by means which may be of any suitable form, size, and construction, and is here illustrated, Figs. 28, 29, 30, and 31, as consisting of an expansible friction-band g an expanding-bolt g and a rod g Said friction-band is normally separated from an internal engaging face of the wheel g, encircles a disk g fixed to the shaft g, and is formed with a transverse slot 9 and with opposite portions g increasing in thickness from the slot 9 toward the in- IZC termediate portion of the band and having their inner faces provided with transverse ribs 9 engaged with the periphery of the disk g". The expanding-bolt g is arranged in a guide 9 in the disk'g and is movable endwise for causing its outer end to wedge apart the sides of the slot 9 and engage the periphery of the band 9 with the internal face 9 of the wheel g. The rod g moves lengthwise in the interior of the shaft g, which is formed hollow, and said rod is provided at one end with a cam g for forcing the bolt 9 into its operative position and is connected at its other end to a lever 9 actuated by a controlling-lever G, Fig. 1. A spring 9 is usually provided for tending to prevent the vibration of the machine from moving the lever 9 out of its operative position, and a non-revoluble braking-surface 9 is movable with the lever Q12 for engaging a corresponding braking-surface 9 fixed to the shaft g, and facilitating the quick stoppage of the shaft g when the rod 9 is actuated to disconnect said shaft from the drivingwheel 9'.

In the illustrated exemplification of my invention the driven and driving feed members h h are connected, respectively, to the shaft 9 and the vise B. One of the feed members is movable into and out of engagement with the other, one of the feed members is separable from the other for varying the amount of movement transmitted thereto, one of said feed members is successively movable'into engagement with the stop j during the feeding of the vise, and suitable adjusting means is provided for cooperating with said stop and controlling the length of the step-by-step movements of the vise. As here shown, the driven feed member h is connected to the vise B by means including additional feed members i t", and the driving member h is connected to the shaft g.

As best seen in Figs. 23 to 27, inclusive, the feed members h 2' are respectively movable toward and away from the shaft 9 and loosely movable on said shaft. The feed members h t" are respectively fixed to'and loose upon said shaft, and the stopj is adj ustable in the path of the feed member '5. Said feed member his shown as consisting of. a roller carried by a pivoted lever h and moved from and toward the axis of the shaft g by the feed member hand a spring h connected to the drivenfeed member h by the feed member t" and a link 71.. The feed member h is normally separated a greater or less distance -from a portion of the driving feed member h for determining the amount of movement to be given to the member h, and the extent of such separation may be regulated at will by the stop j or an adjustable part i carried by the feed member 2" and movable into and out of engagement with the stopj. Said feed members i 1; being both loose on the shaft 9 are obviously movable on substantially the same axis, and, as best illustrated in Figs. 24 and 25, contiguous faces of these members '6 41 are normally engaged and frictionally connected by clutch-rollers i which are forced into their operative position by springs 2", carried by'the member 2. The feed member 1' is formed with a toothed periphery, which is engaged with a feed member consisting of a toothed reciprocating bar or rack v1 pivoted to the jaw b, for moving the vise B forwardly step by step as the member t is intermittently advanced. The contiguous faces of the members 1111, engaged-by the clutch-rolle rs 71 are so formed that as the member 2" is advanced by the movement of the member h the clutch-rollers i move the feed member with the member 4; butupon the return of said member 1', effected by the. spring h the clutch-rollers i slip along the contiguous surfaces of the feed member 7; without effecting retrograde movement thereof. Said clutch-rollers t are generally mounted'on pins or spindles provided on a rocking part or sleeve 11, also provided with an arm i arranged in the path of an arm i fixed to the upper end of areciprocating bar *6", which is normally forced upwardly by a spring 1' and is connected at its lower end to a manuallyoperated member, as a'treadle i When the member or treadle t is depressed, the part or sleeve i is actuated to force the clutchrollers i from their normal or operative position, thus permitting the vise B to be readily returned to its starting position. It will be noted that the parts h h h t" 71 it? all move together or as a single piece when the driven feed member h is actuated by the driving feed member h and that the parts 71 k h 1; i move together or as a single piece when the spring 72 moves the driven member it into its normal position'in engagement with the stop j. l

The stopj determines the amount of separation of the feed members h h, and thereby controls the length of the step-by-step movements of the vise B. The adjusting means cooperating with the stopj is here illustrated as consisting of the part "L previously described, and means interposedbetweensaid stop and the vise B for varying the position of the stop. Said part i may, however, be incapable of adjustment, if desired. The stop j is shown as pivoted to a partj adj ustable lengthwise on one arm of a rock-shaft j, which is held in its normal position by a spring f and is provided with a second arm j normally in contact with an engaging face 6 upon the jaw b. The part j, to which the stopj is pivoted, is secured relatively to the corresponding arm of the rock-shaft j by a set-screwy, and said stop is movable on its pivot relatively to said part by screws j. When the stop 7' is connected to a movable vise-jaw, as shown and described, the positionof the stop and the length of the advance steps of the vise are controlled automatically by the thickness of the broom. It'will be obvious, however, that the stop may be manually adjusted by the screwsj or by moving the partj lengthwise. It will also be apparout to those skilled in the art that the arm 7' might be provided with a longitudinally-adjustable screw similar to the screws t 7' extending through its upright sides and hearing against the face Z9 and that said face might be provided on the jaw 79 instead of the jaw b, in which event no automatic adjustment of the stop would take place.

It will be particularly noted that I do not limit my invention to the described construction and arrangement of the means for connecting the feed member h to the vise or for cooperating with the stop j to control the length of the step-by-step movements of the vise, as these parts may obviously be constructed in may different ways.

The means for holding the vise B in its adjusted position when fed step by step maybe of any desirable form, size, and construction, and is here illustrated as consisting of a part or sleeve 713, mounted on the shaft g and provided with a friction face or member 70, which is forced lengthwise of the shaft 9 into engagement with the driven feed membervl for holding the same in its adjusted position. Said part or sleeve 7c is generally provided with separated bearing-surfaces 70 engaged with the outer or upper edge of the reciprocating feed member or bar at opposite sides of a line extending through the shaft g, at right angles with the part The surfaces 70 hold the part in operative engagement with the feed member 2' and prevent the part or sleeve from rotating on the shaft 9 except slightly, as the bar 1' moves on the pivot connecting said bar to the vise B. The means for moving the part or sleeve and its friction memberk lengthwise of the shaft 9 is here shown as clamping-sections k 7;, mounted on the shaft 9 between the sleeve or part It and a shoulder k on the shaft 9 and having theiropposing faces provided with cam-surfaces. One clam ping-section k is held from rotation on the shaft by a connection 70 to the frame A, and the other clamping-section 70 is connected to the reciprocating rod i, which holds the sections 1: k in their operative position. When the treadle 2' is depressed, as previously described, for forcing the clutch-rollers 11 from their operative position, the clamping-sections L 75 are simultaneously forced from their operative position, thus permitting the vise B to move independently of the means for holding the same in its adjusted position.

The sewing mechanism, Figs. 3, 4, 5, 6, 9, 10, and 32 to 45, inclusive, preferably comprises a needle L for securing one end of the band to the broom, opposite needles M M for sewing the bands to said broom, loopers N for engaging the band or thread with the needles M M, and a bandlifter O. Said needle L is usually supported on the vise B, being here shown as provided with a handpiece Z and as movable in reverse directions in a suitable curved guide Z, having its lower end hinged at Z to the jaw b of the vise B and its upper end arranged in close proximity to the paths of the needles M M when passing through the broom. The movement of the needle L in reverse directions in its guide Z may be limited by any desirable stops, unnecessary to describe herein. The needleL is generally connected to the support I) by any suitable means, here illustrated as a cam Z Fig. 5, fixed to the support 21 by the clamping-screw Z" and provided with an inclined rib Z which is engaged by one end of an arm Z having its other end fixed to the guide Z. By connecting the needle L to the support 5 by the cam Z and the inclined rib i the movement of the support 5 causes said needle to move relatively to the vise B and the broom B, and the corresponding ends of the bands are secured to said article at points out of vertical alinement. In the use of the needle L it is forced to the right by hand through the broom, the thread is engaged with the hook-shaped needle end, and the needle is moved toward the left through said broom, drawing the thread therethrough. After one end of the thread is secured to the broom said thread may be wrapped around the broom directly above the rise and attached to the secured end of the thread, whereupon the free unsecured end of the thread is engaged with one of the loopers N and is drawn through the broom from one side to the other side by the needles M M.

In the preferable construction of my invention the needles M M are normally arranged at opposite sides of the vise B and are alternately moved upwardly over said vise and through the broom in paths converging upwardly toward each other and crossing at a point substantially directly above and in close proximity to the broom-engaging face of the jaw Z). Said needles M M are here shown as pivoted at m to the outer ends of rocking arms m m, having their lower ends pivoted at m to opposite brackets or supports m upon the frame A and connected to the shaft g by suitable connections, unnecessary to describe herein. As seen in Figs. 34 and 35, the needles M M are connected to slides m, held by springs m in engagement with stationary cams m, which are formed with surfaces m, substantially concentric with the pivots m and surfaces m extending downwardly from the surfaces m Said springs m and cams on cause the needlesMM to move with the outer ends of the arms m m in substantially curved paths during the greater part of their strokes and to then move relatively to the rocking arms m 772 during the balance of their strokes for forcing the needles during said balance of their strokes to move in substantially straight upwardly-inclined planes, passing over the vise B and extending under the band at one side of the broom B and over the band at the opposite side of said broom. By moving the needles M M as described it is practicable to use straight needles 

